If you don’t recall what the Panda doesn’t like, it’s thin and poor quality content assessed by humans and then fed into Google’s machine learning capabilities. If you’ve been ranking well for a naff site with loads of horrible advertising then this particular panda might chew that to pieces like so many stalks of bamboo.

Google near-continuously updates and refreshes how the algorithms function, but they let us know when there’s a particularly big update coming out. This is such an update, and is though to impact about 7.5% of English language searches.